CN113936502A - Self-powered road health monitoring system for dangerous road sections - Google Patents
Self-powered road health monitoring system for dangerous road sections Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 64
- 230000036541 health Effects 0.000 title claims abstract description 39
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- 238000003306 harvesting Methods 0.000 claims abstract description 30
- 230000002159 abnormal effect Effects 0.000 claims abstract description 20
- 238000012545 processing Methods 0.000 claims abstract description 6
- 238000007726 management method Methods 0.000 claims description 36
- 238000003745 diagnosis Methods 0.000 claims description 16
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- 230000008859 change Effects 0.000 claims description 3
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- 230000005059 dormancy Effects 0.000 claims description 3
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- 238000004806 packaging method and process Methods 0.000 claims description 3
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- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000010248 power generation Methods 0.000 description 25
- 239000002131 composite material Substances 0.000 description 8
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- 239000003638 chemical reducing agent Substances 0.000 description 2
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- 230000008054 signal transmission Effects 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
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- G—PHYSICS
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- G08G1/00—Traffic control systems for road vehicles
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- G08G1/167—Driving aids for lane monitoring, lane changing, e.g. blind spot detection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention relates to a self-powered road health monitoring system for dangerous road sections, which comprises an energy harvesting deceleration strip, a road guardrail, a power supply management module, a control center, a wireless transmission module, a road sensor module, a sound wave instrument, a stress detector and a warning board, wherein the energy harvesting deceleration strip is used as a self-powered power supply, the power supply management module is used for carrying out circuit processing on the energy converted by the energy harvesting deceleration strip, the power supply management module is used for supplying power to the whole system, information acquired by the road sensor module, the sound wave instrument and the stress detector is transmitted to the control center through the wireless transmission module, the control center is electrically connected with the warning board and sends an instruction to the warning board when the acquired information is abnormal, and the road guardrail provides support for the power supply management module, the control center, the wireless transmission module and the warning board; compared with the prior art, the energy collection system can realize the energy collection of the vehicle road environment, solve the power supply problem of the monitoring system, ensure the safety and efficiency of travel and provide scientific basis and guidance for road maintenance.
Description
[ technical field ]
The invention belongs to the field of energy acquisition and road health monitoring, and particularly relates to a self-powered road health monitoring system for a dangerous road section.
[ background art ]
Some road sections of traffic roads are easy to cause serious traffic accidents and casualties due to factors such as geographical environment and the like. The collection of the information of internal stress, pavement structural damage, pavement temperature and humidity and the like of the road sections can effectively monitor conditions of landslide, road collapse, road overflow, road icing and the like which seriously affect traffic safety, guarantee driving safety and driving efficiency, and simultaneously facilitate the analysis of the road damage reason and scientific maintenance.
The current road health monitoring methods can be divided into three types: manual detection, remote monitoring and composite monitoring. The road state information is acquired by cultivating professional technicians and using a detection instrument in manual monitoring, the monitoring cost for remote road sections is high, and the monitoring result is influenced by the level of the technicians; the remote monitoring is combined with technologies such as a sensor and the internet, so that various parameter information of road facilities can be remotely acquired on line, and the method is a direction of health monitoring development and is yet to be further improved; the composite monitoring uses two monitoring methods of manual detection and remote monitoring in a mixed mode, and plays a transitional role when the remote monitoring technology is not mature enough.
In the monitoring process, the road environment and the road state information can be basically and directly obtained by a sensor, and the road structure information needs to be obtained by combining other technologies, such as: ultrasonic penetration, infrared thermal imaging, radiolucent, acoustic emission, and the like. The power supply of various sensor devices is one of the key problems faced by the health monitoring technology, and has difficulty in the popularization and application of the monitoring technology. The dangerous road sections possibly have the characteristics of poor road conditions, terrain risks, high altitude and the like, the demand of road health monitoring is strong, and the monitoring cost and the difficulty are high.
[ summary of the invention ]
The invention aims to solve the defects and provide a self-powered road health monitoring system for dangerous road sections, which can realize energy collection of vehicle and road environments, solve the problem of power supply of the monitoring system, efficiently master parameter information of road surfaces and hillsides in real time, intelligently evaluate the safety condition of road structures, give corresponding safety warnings, guarantee the safety and efficiency of travel and provide scientific basis and guidance for road maintenance.
The self-powered road health monitoring system for the dangerous road section comprises a energy harvesting deceleration strip 1, a road guardrail 2, a power supply management module 3, a control center 4, a wireless transmission module 5, a road sensor module 6, a sound wave meter 7, a stress detector 8 and a warning board 9, wherein the energy harvesting deceleration strip 1 is arranged on the road surface, the energy harvesting deceleration strip 1 collects electric energy generated by rolling of a running vehicle and serves as a self-powered power supply, the energy harvesting deceleration strip 1 is connected with the power supply management module 3 through a line and is subjected to circuit processing on energy converted by the power supply management module 3, the power supply management module 3 supplies power to the control center 4, the wireless transmission module 5, the road sensor module 6, the sound wave meter 7, the stress detector 8 and the warning board 9, and the road sensor module 6 is used for monitoring environmental state information of a road, the sound wave appearance 7 is used for monitoring road structure's damage state, stress detector 8 is used for monitoring hillside stress information, the information that road sensor module 6, sound wave appearance 7, stress detector 8 gathered passes through wireless transmission module 5 and transmits to control maincenter 4, control maincenter 4 is connected with warning sign 9 electricity to send instruction to warning sign 9 when the information of gathering exists unusually, road guardrail 2 provides the support for power management module 3, control maincenter 4, wireless transmission module 5 and warning sign 9.
Further, after the stress detector 8 collects stress data, the data are transmitted to the control center 4 for processing, if stress fluctuation or numerical value abnormality is judged, a warning instruction is triggered and further analysis is prepared, and if abnormality does not exist, stress information is directly uploaded to a cloud end; the road sensor module 6 comprises an acquisition area A and an acquisition area B, and the sensor modules of the two acquisition areas transmit road data to the control center 4 for storage and management after acquiring the road data, so as to provide a basis for road health diagnosis and analysis; the sound wave instrument 7 sends original ultrasonic pulse signals, the other two sound wave instruments receive and further send the pulse signals, after data are transmitted to the control center 4, if waveform change is judged to exceed an attenuation threshold value, a warning instruction is triggered and further analysis is prepared, and if no abnormity exists, stress information is directly uploaded to the cloud.
Further, based on data integration of the road sensor module 6, the acoustic wave meter 7 and the stress detector 8, if abnormal sensor data exist, a preliminary health diagnosis suggestion is fed back and uploaded to a cloud server; if no abnormal sensor data exists, directly uploading the data to a cloud server; the health diagnosis advice is: if the humidity and the temperature are abnormal, the road is fed back to be frozen; if the humidity and the pressure are abnormal, the road overflow water is fed back; feeding back landslide if pressure, vibration and stress are abnormal; and if the vibration and ultrasonic wave abnormity occurs, the feedback road collapses.
Further, the power management module 3 includes a booster 301, a rectifier bridge circuit 302, a super capacitor 303 and a threshold output circuit 304, an input end of the booster 301 is connected with the energy harvesting deceleration strip 1, an output end of the booster 301 is connected with the super capacitor 303 through the rectifier bridge circuit 302, the super capacitor 303 is connected with the threshold output circuit 304, the power management module 3 boosts collected energy through the booster 301 to reduce loss of electric energy in a transportation process, then the rectifier bridge circuit 302 converts alternating current into direct current, stores the electric energy in the super capacitor 303, and finally the threshold output circuit 304 is used for supplying power to relevant equipment when the electric energy exceeds a voltage threshold and continuing charging when the electric energy does not reach the voltage threshold.
Furthermore, the road sensor module 6 is respectively provided with four sensors in an A, B acquisition area, wherein the four sensors are respectively a temperature sensor, a humidity sensor, a vibration sensor and a pressure sensor, the types and the number of the sensors in the A, B acquisition area are the same, the types of the sensors on the same road side are different, and the sensors are installed along the edge of the road; the road sensor modules 6 are all grating sensors, and all information transmission is wireless transmission.
Furthermore, the normal attenuation threshold of the acoustic wave instrument 7 needs a road sampling test, and in the test process, based on a control variable method, transmission data of the same pulse signal under different test distances and weather environment interference factors are collected, and the normal attenuation speed and the attenuation range of the waveform are deduced; the sound wave instrument 7 is arranged on the outer edge of the road side, the sound wave instrument 7 is provided with a first sound wave instrument 701, a second sound wave instrument 702 and a third sound wave instrument 703, the three sound wave instruments 7 are not arranged on the same side, a connecting line between every two adjacent sound wave instruments 7 does not penetrate out of the road surface, and each sound wave instrument 7 is attached with a section of identification pulse signal when ultrasonic waves are sent.
Further, the stress detector 8 is arranged in a vacant mode, a single-side mode or a double-side mode according to the condition that whether hillsides exist on two sides of the dangerous road section or not; when no hillside exists, the stress detector 8 is not arranged; when a side hill exists, arranging a first stress detector 801, a second stress detector 802 and a third stress detector 803; when there is a slope on both sides, the first stress detector 801, the second stress detector 802 and the third stress detector 803 are arranged on one side, and the fourth stress detector 804, the fifth stress detector 805 and the sixth stress detector 806 are arranged on the other side.
Furthermore, the power management module 3 and the control center 4 are protected by a cylindrical insulating shell, the road guardrail 2 below the power management module is of a hollow structure, and the interior of the road guardrail is used for laying lines; the wireless transmission module 5 is protected by a conical plastic shell and is arranged on the control center 4; the wireless transmission module 5 comprises a Zigbee module and a signal transmitting module, the Zigbee module is used for short-distance wireless transmission in a road area, and the signal transmitting module is a 2G/3G/4G/5G signal transmitting module.
Further, the control center 4 is an STM32 single chip microcomputer, and functions of built-in instructions of the single chip microcomputer include: data receiving and sending, data comparison, diode lighting, data storage, data packaging, preliminary diagnosis and data uploading.
Further, warning sign 9 is by two kinds of even crisscross constitutions of red and yellow emitting diode, and diode power saving dormancy under normal condition, warning sign 9 is installed on road guardrail 2, and just is right to energy harvesting deceleration strip 1.
Compared with the prior art, the invention has the following advantages:
(1) the invention provides a dangerous road self-powered monitoring system which is feasible to implement, has the functions of road monitoring and safety early warning, and can effectively solve the problems of high cost and great difficulty in dangerous road section health monitoring;
(2) the energy harvesting and reducing device has sufficient power supply, and the huge impact energy when a vehicle rolls on a road surface is collected by arranging a plurality of power generation units under the energy harvesting and reducing belt, so that the power supply problem of the system is solved;
(3) the power generation deceleration strip is reasonable in protection, an elastic structure is arranged between the power generation unit and the deceleration strip, a system circuit is arranged inside the hollow guardrail energy harvesting and harvesting deceleration strip, and the power management and wireless transmission module is provided with a protective shell;
(4) the intelligent operation is realized, the abnormal information of the road surface and the hillside automatically generates a preliminary diagnosis result and uploads the preliminary diagnosis result to the cloud together with other monitoring data, and manual operation is not needed;
(5) the system has rapid feedback, realizes whole-course high-speed wireless transmission by combining a Zigbee network and a mobile communication technology, and ensures that the cloud server can quickly acquire the health state of the road before the vehicle passes through a dangerous road section;
(6) when a certain road monitoring system fails, the adjacent other systems cannot be influenced, and the stability of the operation of the health monitoring system is ensured;
in conclusion, the invention can realize the energy collection of the vehicle road environment, solve the power supply problem of the monitoring system, efficiently grasp the parameter information of the road surface and the hillside in real time, intelligently evaluate the safety condition of the road structure, give corresponding safety warning, guarantee the safety and efficiency of travel, provide scientific basis and guidance for road maintenance, and is worthy of popularization and application.
[ description of the drawings ]
FIG. 1 is an overall layout of the present invention;
FIG. 2 is a functional framework diagram of the present invention;
FIG. 3 is a flow chart of health monitoring according to the present invention;
FIG. 4 is a preliminary diagnostic analysis of the present invention;
FIG. 5 is a schematic diagram of the overall structure of the energy harvesting deceleration strip according to the present invention;
FIG. 6 is a schematic structural view of a power generation unit according to the present invention;
FIG. 7 is a flow chart of power management in the present invention;
FIG. 8 is a diagram of a sensor module layout according to the present invention;
FIG. 9 is a diagram of the layout of the sonicator of the present invention;
FIG. 10a is a layout diagram of a stress detector according to the present invention;
FIG. 10b is a single side layout view of the stress detector of the present invention;
FIG. 10c is a double-sided layout of the stress detector of the present invention;
in the figure: 1. the energy harvesting deceleration strip 101, the fully-sealed power generation unit 102, the lifting strip 103, the lifting plate 104, the driven permanent magnet 105, the guide post 106, the return spring 107, the top plate 108, the transmission assembly 109, the composite power generation wheel 110, the power generation stator 111, the bottom plate 112, the mounting plate 113, the transmission mounting plate 2, the road guardrail 3, the power management module 301, the booster 302, the rectifier bridge circuit 303, the super capacitor 304, the threshold output circuit 4, the control center 5, the wireless transmission module 6, the road sensor module 601, the first temperature sensor 602, the first humidity sensor 603, the first vibration sensor 604, the first pressure sensor 605, the second pressure sensor 606, the second vibration sensor 607, the second humidity sensor 608, the second temperature sensor 7, the sonic meter 701, the first sonic meter 702, the second sonic meter 703, the second driven permanent magnet 105, the ultrasonic sensor 107, the second return spring 107, the wireless transmission module 6, the first road sensor 601, the second temperature sensor 602, the first humidity sensor 603, the second vibration sensor 604, the second sonic sensor 701, the second sonic meter 703, the second ultrasonic meter, A third acoustic wave instrument 8, a stress detector 801, a first stress detector 802, a second stress detector 803, a third stress detector 9 and a warning board.
[ detailed description of the invention ]
The invention is further described below with reference to the accompanying drawings:
as shown in the attached drawing 1, the invention provides a self-powered road health monitoring system for dangerous road sections, which comprises an energy harvesting deceleration strip 1, a road guardrail 2, a power management module 3, a control center 4, a wireless transmission module 5, a road sensor module 6, a sound wave instrument 7, a stress detector 8 and a warning board 9, wherein the energy harvesting deceleration strip 1 is arranged on a road surface, and the energy harvesting deceleration strip 1 is used for collecting electric energy generated by rolling of running vehicles.
As shown in the attached figure 2, the self-powered road health monitoring system is provided with an energy capturing deceleration strip 1 as a self-powered power supply, the energy capturing deceleration strip 1 is connected with a power supply management module 3 through a line, the power supply management module 3 performs circuit processing on energy converted by the energy capturing deceleration strip 1, and the energy capturing deceleration strip 1 is combined with the power supply management module 3 to supply power to the whole system; the power management module 3 supplies power to the control center 4, the wireless transmission module 5, the road sensor module 6, the sound wave instrument 7, the stress detector 8 and the warning board 9, the road sensor module 6 is used for monitoring environmental state information of a road, the sound wave instrument 7 is used for monitoring a damage state of a road structure, the stress detector 8 is used for monitoring stress information of a hillside, information collected by the road sensor module 6, the sound wave instrument 7 and the stress detector 8 is transmitted to the control center 4 through the wireless transmission module 5, the control center 4 is electrically connected with the warning board 9, an instruction is sent to the warning board 9 when the information is abnormal, and finally, data are further uploaded to the cloud; the road guardrail 2 provides support for the power management module 3, the control center 4, the wireless transmission module 5 and the warning board 9; the road sensor module 6 contains A, B two data acquisition areas for acquiring road information.
As shown in fig. 3, the health monitoring system performs monitoring in three aspects simultaneously. Firstly, monitoring hill stress information, acquiring stress data by a stress detector 8, transmitting the data to a control center 4 for processing, triggering a warning instruction if stress fluctuation or numerical value is abnormal, preparing for further analysis, and directly uploading the stress information to a cloud end if no abnormality exists; secondly, monitoring the environmental state information of the road, collecting road data by a sensor module in an A, B area, transmitting the road data to the control center 4 for storage and management, and providing a basis for road health diagnosis and analysis; thirdly, monitoring the damage state of the road structure, sending original ultrasonic pulse signals by the sound wave instrument 701, and receiving and further sending pulse signals by the sound wave instrument 702 and the sound wave instrument 703, as shown in fig. 9. After the data are transmitted to the control center 4, if the waveform change is judged to exceed the attenuation threshold, a warning instruction is triggered and further analysis is prepared, and if no abnormity exists, the stress information is directly uploaded to the cloud. Finally, based on data integration of three monitoring paths of the road sensor module 6, the acoustic wave instrument 7 and the stress detector 8, if abnormal sensor data exist, a preliminary health diagnosis suggestion is fed back and uploaded to a cloud server; and if no abnormal sensor data exists, directly uploading the data to a cloud server. As shown in fig. 4, the health diagnosis recommendations are: the humidity and the temperature are abnormal, and the road is fed back to be frozen; the abnormal humidity and pressure are fed back to the road for overflowing; feeding back landslide when pressure, vibration and stress are abnormal; and (4) generating vibration and ultrasonic wave abnormity and feeding back the collapse of the road.
In the invention, six energy capturing deceleration strips 1 are arranged, each energy capturing deceleration strip 1 is arrayed with a plurality of fully-sealed power generation units 101, and is sealed and protected by a sealing cover and installed below a lifting strip 102, as shown in figure 5. The lifting belt 102 and the fully sealed power generation unit 101 are provided with repulsive magnets, and the fully sealed power generation units 101 are connected in series or in parallel in a wired connection mode. As shown in fig. 6, the hermetically sealed power generation unit 101 includes a lifting plate 103, a top plate 107, a transmission assembly 108, a composite power generation wheel 109 and a power generation stator 110, the lifting plate 103 is located on the top of the hermetically sealed power generation unit 101 and located above the top plate 107, the lifting plate 103 and the top plate 107 are arranged at intervals, a driven permanent magnet 104 is installed in the middle of the lifting plate 103, a guide pillar 105 is vertically arranged below the lifting plate 103, a return spring 106 is sleeved on the periphery of the guide pillar 105, the return spring 106 is arranged between the lifting plate 103 and the top plate 107, the guide pillar 105 slidably penetrates through the top plate 107, the bottom end of the lifting plate 103 is connected with the transmission assembly 108, the output end of the transmission assembly 108 is connected with and drives the composite power generation wheel 109, and the composite power generation wheel 109 is correspondingly provided with the power generation stator 110; the bottom of the fully-sealed power generation unit 101 is provided with a bottom plate 111, two power generation stator mounting plates 112 and two transmission mounting plates 113 are symmetrically arranged between the top plate 107 and the bottom plate 111, the composite power generation wheel 109 and the power generation stator 110 are symmetrically arranged at the two power generation stator mounting plates 112, and the transmission assembly 108 is symmetrically arranged at the two transmission mounting plates 113.
The working principle of the fully-sealed power generation unit is as follows: when the automobile runs through the energy capturing deceleration strip 1, the lifting strip moves downwards under pressure, at the moment, repulsive magnetic force enables the lifting plate to sink, the rack at the lower end drives the gear to rotate, the left side ratchet wheel is forced to rotate under the action of the gear set, on one hand, the ratchet wheel drives the permanent magnet to rotate at high speed, magnetic induction lines between the permanent magnet and the coil are cut, and induction current is generated. On the other hand, the ratchet wheel drives the rotating disk fixedly connected with the ratchet wheel to rotate in a single direction at a high speed, so that the friction electrode is rubbed with the obtained electronic frame and the lost electronic frame to generate triboelectricity, and meanwhile, the ratchet wheel pawl on the right side does not work. In a similar way, when the lifting belt is reset under the action of the spring, the ratchet wheel on the right side rotates to generate induction current and drives the rotating disc to generate triboelectricity. For a more detailed description of the above fully sealed power generation unit, reference may be made to another patent application of high robustness magnetic coupling fully sealed friction and electromagnetic composite road surface energy collection device, which is previously applied by the applicant, and whose patent application number is 202010744067.1, and will not be described herein again.
As shown in fig. 7, the power management module 3 includes a booster 301, a rectifier bridge circuit 302, a super capacitor 303 and a threshold output circuit 304, wherein an input end of the booster 301 is connected with the energy harvesting deceleration strip 1, an output end of the booster 301 is connected with the super capacitor 303 through the rectifier bridge circuit 302, and the super capacitor 303 is connected with the threshold output circuit 304; the power management module 3 uses the booster 301, the rectifier bridge circuit 302, the super capacitor 303 and the threshold output circuit 304 to realize power management, the power management module 3 boosts the collected energy through the booster 301, the loss of the electric energy in the transportation process is reduced, the alternating current is converted into the direct current through the rectifier bridge circuit 302, so that the electric energy can be better stored into the super capacitor 303, and finally, the threshold output circuit 304 is utilized, so that the electric energy supplies power for related equipment when exceeding a voltage threshold, and the charging is continued when not reaching the voltage threshold.
As shown in fig. 8, the road sensor module 6 arranges four sensors, namely a temperature sensor, a humidity sensor, a vibration sensor and a pressure sensor, in an A, B acquisition area. The area A comprises a first temperature sensor 601, a first humidity sensor 602, a first vibration sensor 603 and a first pressure sensor 604, and the area B comprises a second temperature sensor 608, a second humidity sensor 607, a second vibration sensor 606 and a second pressure sensor 605. A. The types and the number of the sensors in the acquisition region B are the same, and the types of the sensors on the same road side are different; the sensors are installed along the edge of the road at a distance of about 30cm, so that the wiring workload is reduced; the road sensor modules 6 are all grating sensors, all information transmission is wireless transmission, and electric energy for system operation comes from the energy harvesting deceleration strip 1.
The normal attenuation threshold of the acoustic wave instrument 7 needs a road sampling test, and in the test process, transmission data of the same pulse signal under different test distances and interference factors such as weather environments and the like are collected based on a control variable method, so that the normal attenuation speed and the attenuation range of the waveform are scientifically deduced. As shown in fig. 9, the acoustic wave instrument 7 is arranged at the outer edge of the road side, the acoustic wave instrument 7 is provided with a first acoustic wave instrument 701, a second acoustic wave instrument 702 and a third acoustic wave instrument 703, the three acoustic wave instruments 7 are not arranged at the same side, and connecting lines between the first acoustic wave instrument 701 and the second acoustic wave instrument 702, and between the second acoustic wave instrument 702 and the third acoustic wave instrument 703 do not penetrate through the road surface, so that the ripple analysis is facilitated; each sonic apparatus 7 is attached with a section of identification pulse signal when transmitting ultrasonic waves, so that the wave bands can be identified conveniently.
The stress detector 8 is arranged in an empty mode, a single-side mode and a double-side mode according to the condition that whether hills exist on two sides of a dangerous road section or not; as shown in fig. 10a, 10b and 10c, when there is no hill, the stress detector 8 is not disposed; when a side hill exists, arranging a first stress detector 801, a second stress detector 802 and a third stress detector 803; when there is a slope on both sides, the first stress detector 801, the second stress detector 802 and the third stress detector 803 are arranged on one side, and the fourth stress detector 804, the fifth stress detector 805 and the sixth stress detector 806 are arranged on the other side.
The power management module 3 and the control center 4 are protected by a cylindrical insulating shell, the road guardrail 2 below the power management module is of a hollow structure, and lines can be laid inside the road guardrail; the wireless transmission module 5 is protected by a conical plastic shell and is arranged on the control center 4; the wireless transmission module 5 comprises two parts, one part is a Zigbee module for short-distance wireless transmission in a road area, and the other part is a 2G/3G/4G/5G signal transmission module, and the specific signal transmission module depends on the network coverage condition of the road. Control centre 4 is STM32 singlechip, and the main function of the built-in instruction of singlechip includes: data receiving and sending, data comparison, diode lighting, data storage, data packaging, preliminary diagnosis and data uploading. Warning sign 9 is by two kinds of even crisscross constitutions of red and yellow emitting diode, and diode power saving dormancy under the normal condition, warning sign 9 is installed on road guardrail 2, and just is about energy harvesting deceleration strip 1.
The system has the functions of road monitoring and safety early warning, and can effectively solve the problems of high cost and great difficulty in health monitoring of dangerous road sections; the energy harvesting speed reducer is sufficient in power supply, and impact energy when a vehicle rolls on a road surface is collected by arranging a plurality of power generation units under the energy harvesting speed reducer; the protection is reasonable, and an elastic buffer structure and various protective shells are arranged; the intelligent operation is realized, the abnormal information of the dangerous road section automatically generates a preliminary diagnosis result and uploads the preliminary diagnosis result to the cloud together with other monitoring data, and manual operation is not needed; the feedback is rapid, and the cloud server can rapidly acquire the health state of the road before the vehicle passes through the dangerous road section through wireless transmission.
The present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.
Claims (10)
1. A self-powered road health monitoring system for dangerous road segments, characterized in that: the energy harvesting deceleration strip comprises an energy harvesting deceleration strip (1), a road guardrail (2), a power supply management module (3), a control center (4), a wireless transmission module (5), a road sensor module (6), a sound wave meter (7), a stress detector (8) and a warning board (9), wherein the energy harvesting deceleration strip (1) is arranged on the road surface, the energy harvesting deceleration strip (1) collects electric energy generated by rolling of running vehicles and serves as a self-powered power supply, the energy harvesting deceleration strip (1) is connected with the power supply management module (3) through a circuit and is subjected to circuit processing on energy converted by the power supply management module (3), the power supply management module (3) is used for supplying power to the control center (4), the wireless transmission module (5), the road sensor module (6), the sound wave meter (7), the stress detector (8) and the warning board (9), and the road sensor module (6) is used for monitoring environmental state information of roads, sound wave appearance (7) are used for monitoring road structure's damage state, stress detection appearance (8) are used for monitoring hillside stress information, the information that road sensor module (6), sound wave appearance (7), stress detection appearance (8) were gathered passes through wireless transmission module (5) and transmits to control maincenter (4), control maincenter (4) are connected with warning sign (9) electricity to send instruction to warning sign (9) when the information of gathering exists unusually, road guardrail (2) provide the support for power management module (3), control maincenter (4), wireless transmission module (5) and warning sign (9).
2. The self-powered road health monitoring system for hazardous road segments of claim 1, characterized in that: the stress detector (8) collects stress data, transmits the data to the control center (4) and processes the data, if stress fluctuation or numerical value abnormity is judged, a warning instruction is triggered and further analysis is prepared, and if no abnormity exists, stress information is directly uploaded to the cloud end; the road sensor module (6) comprises an acquisition area A and an acquisition area B, and the sensor modules of the two acquisition areas transmit road data to the control center (4) for storage and management after acquiring the road data, so as to provide a basis for road health diagnosis and analysis; the sound wave instrument (7) sends original ultrasonic pulse signals, the other two sound wave instruments receive and further send the pulse signals, after data are transmitted to the control center (4), if waveform change is judged to exceed an attenuation threshold value, a warning instruction is triggered, further analysis is prepared, and if no abnormity exists, stress information is directly uploaded to the cloud.
3. The self-powered road health monitoring system for dangerous segments of road of claim 2, characterized in that: based on data integration of the road sensor module (6), the acoustic wave instrument (7) and the stress detector (8), if abnormal sensor data exist, a preliminary health diagnosis suggestion is fed back and uploaded to a cloud server; if no abnormal sensor data exists, directly uploading the data to a cloud server; the health diagnosis advice is: if the humidity and the temperature are abnormal, the road is fed back to be frozen; if the humidity and the pressure are abnormal, the road overflow water is fed back; feeding back landslide if pressure, vibration and stress are abnormal; and if the vibration and ultrasonic wave abnormity occurs, the feedback road collapses.
4. The self-powered road health monitoring system for dangerous segments as claimed in claim 1, 2 or 3, wherein: the power management module (3) comprises a booster (301), a rectifier bridge circuit (302), a super capacitor (303) and a threshold value output circuit (304), wherein the input end of the booster (301) is connected with the energy harvesting deceleration strip (1), the output end of the booster (301) is connected with the super capacitor (303) through the rectifier bridge circuit (302), the super capacitor (303) is connected with the threshold value output circuit (304), the power management module (3) boosts the collected energy through the booster (301) to reduce the loss of the electric energy in the transportation process, the rectifier bridge circuit (302) is used for converting the alternating current into the direct current and storing the electric energy into the super capacitor (303), and finally the threshold value output circuit (304) is used for supplying power to relevant equipment when the electric energy exceeds a voltage threshold value and continuing to charge when the voltage threshold value is not reached.
5. The self-powered road health monitoring system for dangerous segments as claimed in claim 2 or 3, wherein: the road sensor module (6) is characterized in that four sensors, namely a temperature sensor, a humidity sensor, a vibration sensor and a pressure sensor, are respectively arranged in an A, B acquisition area, the types and the number of the sensors in the A, B acquisition area are the same, the types of the sensors on the same road side are different, and the sensors are arranged along the edge of the road; the road sensor modules (6) are all grating sensors, and all information transmission is wireless transmission.
6. The self-powered road health monitoring system for hazardous road segments of claim 1, characterized in that: the normal attenuation threshold of the acoustic wave instrument (7) needs a road sampling test, and in the test process, based on a control variable method, transmission data of the same pulse signal under different test distances and weather environment interference factors are collected, and the normal attenuation speed and the attenuation range of the waveform are deduced; the sound wave instrument (7) is arranged on the outer edge of the road side, the sound wave instrument (7) is provided with a first sound wave instrument (701), a second sound wave instrument (702) and a third sound wave instrument (703), the three sound wave instruments (7) are not arranged on the same side, a connecting line between every two adjacent sound wave instruments (7) does not penetrate out of the road surface, and each sound wave instrument (7) is accompanied by one section of identification pulse signals when sending ultrasonic waves.
7. The self-powered road health monitoring system for hazardous road segments of claim 1, characterized in that: the stress detector (8) is arranged in an empty mode, a single-side mode and a double-side mode according to the condition that whether hillsides exist on two sides of a dangerous road section or not; when no hillside exists, the stress detector (8) is not arranged; when a side hill exists, arranging a first stress detector (801), a second stress detector (802) and a third stress detector (803); when a slope on two sides exists, a first stress detector (801), a second stress detector (802) and a third stress detector (803) are arranged on one side, and a fourth stress detector (804), a fifth stress detector (805) and a sixth stress detector (806) are arranged on the other side.
8. The self-powered road health monitoring system for hazardous road segments of claim 1, characterized in that: the power management module (3) and the control center (4) are protected by a cylindrical insulating shell, the road guardrail (2) below the power management module is of a hollow structure, and lines are laid in the road guardrail; the wireless transmission module (5) is protected by a conical plastic shell and is arranged on the control center (4); the wireless transmission module (5) comprises a Zigbee module and a signal transmitting module, the Zigbee module is used for short-distance wireless transmission in a road area, and the signal transmitting module is a 2G/3G/4G/5G signal transmitting module.
9. The self-powered road health monitoring system for hazardous road segments of claim 1, characterized in that: the control center (4) is an STM32 single chip microcomputer, and the functions of the built-in instructions of the single chip microcomputer comprise: data receiving and sending, data comparison, diode lighting, data storage, data packaging, preliminary diagnosis and data uploading.
10. The self-powered road health monitoring system for hazardous road segments of claim 1, characterized in that: warning sign (9) are evenly crisscross by two kinds of emitting diode of red and yellow and are constituteed, and diode power saving dormancy under the normal condition, warning sign (9) are installed on road guardrail (2), and just are right to energy harvesting deceleration strip (1).
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